Moscow attack: two suspects traveled freely between Russia and Turkey, Turkish official says. Shamsidin Fariduni, who entered Turkey on February 20 and left for Russia on March 2, and Saidakram Rajabalizoda, who arrived in Istanbul on January 5.

“We believe that these two individuals were radicalized in Russia given their short stay in Turkey,” insisted this official. According to a latest report, the attack against the Crocus concert hall claimed by the Islamic State group on the outskirts of Moscow left 139 dead.